Home / 780,282.75-1,170,424.13-189,306.75

Finding the Fourth Proportional to 780,282.75, 1,170,424.13 and 189,306.75

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Solution

The fourth proportional to 780,282.75, 1,170,424.13 and 189,306.75 is: 283,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,282.75 : 1,170,424.13 = 189,306.75 : x
  2. Step 2: Convert to fraction form
    780,282.75/1,170,424.13 = 189,306.75/x
  3. Step 3: Cross multiply
    780,282.75x = 1,170,424.13 × 189,306.75
  4. Step 4: Simplify right side
    780,282.75x = 221,569,188,171.88
  5. Step 5: Solve for x
    x = 221,569,188,171.88/780,282.75
  6. Step 6: Final answer
    x = 283,960.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.